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00000CS409121902

Explain three different Arbitrated Digital Signature Techniques.

What is suppress replay attack in authentication? Explain the protocol used to
eliminate this attack.

Explain the key exchange procedure using Elliptic Curves.

PART 0
Answer any two full questions, each carries 12 marks.

Explain the sequence of steps involved in the message generation and reception
in PGP with block diagrams.

List out the benefits of IPSec.

Explain the features of any two types of firewalls.

Explain the sequence of operations required for Secure Electronic Transaction.
Explain the format of IPSec ESP Packet.

Illustrate the overall operation of SSL Record Protocol.

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